Abstract
To improve the understanding of the role of lubricants in metal deformation processes, FABSIMS (fast atom bombardment secondary ion mass spectroscopy) and RAIRS (reflection absorption infrared spectroscopy) were used to study the chemical interaction of carboxylic acids on oxidised aluminium surfaces. Both techniques detected acid anions, so were consistent with the chemisorption of the acid molecules on the surface. In addition, high mass fragments were detected in the FABSIMS spectra that are associated with oxide clusters and appear to be characteristic of the adsorbed state of the organic acid on the surface. Results from FABSIMS analysis of a sample from a hot rolling mill indicate that similar types of reaction occur in the rolling process.
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